VAV-SVX03A-EN
3
Contents
General Information
Literature Contents ............................................................................................... 4
Receiving and Handling ......................................................................................... 4
Unit Information
Single-Duct Units ............................................................................................... 4-5
Fan-powered Units ............................................................................................ 4-5
Analog Controls
General
Electonic Controls Installation
Minimum and Maximum Potentiometers Adjustments
Zone Sensor Wiring
Location and Mounting
Sequence of Operation
Single-Duct Units .................................................................................................. 9
Series Fan-powered ............................................................................................. 9
Parallel Fan-powered ............................................................................................ 9
Control Options
Constant-Volume ................................................................................................ 10
Auto Dual Minimum ............................................................................................ 10
Calibration
Transducer Operation .......................................................................................... 11
Null Voltage .......................................................................................................... 11
Procedure for Maximum and Minimum Calibration .............................................. 11
Set Maximum Flow .............................................................................................. 11
Set Minimum Flow .............................................................................................. 12
No Dual Minimum .......................................................................................... 12
Auto Dual Minimum ....................................................................................... 12
Balancing
Balancing Procedure ........................................................................................... 13
Adjustments (Set Maximum and Minimum Flows) .............................................. 13
Installation and Wiring
Zone Sensor
Zone Sensor Operation ....................................................................................... 15
Troubleshooting
Tools and Equipment ........................................................................................... 16
System Check ..................................................................................................... 16
Air Damper and Motor Check .............................................................................. 17
Control Check ...................................................................................................... 17
Zone Sensor Check ............................................................................................. 17
Heater Contactor Check ...................................................................................... 17
Fan Motor Check ................................................................................................. 17
Circuit Board Check ............................................................................................. 17
Transducer Check ................................................................................................ 18
Triac Output Check .............................................................................................. 18
Auto Dual Minimum Check .................................................................................. 18
Electronic Zone Sensor Check ............................................................................. 19
